Hot-water furnace



G. H. RUSSELL.

HOT WATER FURNACE.

APPLICATION FILED AUG.|4. 1920.

Patented Jan. 4, 1921. I 3 SHEETS-SHEET lamvwnto c Sig F G. H. RUSSELL.

HOT WATER FURNACE.

APPLICATION FILED AUG.I4. 1920.

Patented Jan. 4, 1921.

3 SHEETSSHEEI 2.

GJZZZaaseZZ amm G. H. RUSSELL.

HUT WATER FURNACE.

APPLICATION FILED AUG. I4, 1920.

Patented Jan. 4, 1921.

3 SHEETS-SHEET 3.

w p/ A UNITED STATES GEORGE E. RUSSELL, 0F FLORENCE, ALABAMA.

nor-warns. FURNACE.

Application filed August 14, 1920.

To all whom it may concern:

Be it known that T, Gnonon H. liUssnLL, a citizen of the United States, residing at Florence, in the county of Lauderdale and State of Alabama, have invented a new and useful Hot-Water Furnace, of which the following is a specification.

This invention relates to furnace construe tions, and more particularly furnaces of the hot water type, the primary object belng to provide a furnace of-this character especially adapted for use in buildlngs of the bungalow type wherein the furnace may be positioned in one of the rooms of the mam floor of the building.

A further object of the invention is to pro vide a down draft furnace having hollow grate bars, which grate bars provide water conduits, whereby the d1rect heat of the firebeds is utilized for heating purposes.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings 2- Figure 1 illustrates alongitudlnal sectional view through a furnace constructed in accordance with the present invention, and showing the same as positioned within one of he walls of a building.

Fig. 2 illustrates a front elevational view of the same.

Fig. 3 illustrates a sectional view taken on line 3-3 of Fig. 1.

1 illustrates a sectional view taken on line 4-4 of Fig. 1.

5 illustra es a sectional view taken on line 55 of Fig. 1.

Fig. 6 illustrates a sectional view taken on line 66 of Fig. 1.

Referring to the drawings in detail. the reference character 5 designates the main firebox of the furnace which is disposed above a lower firebox 6, the rear walls of the fireboxes being formed into a water back 7 This water back 7 has communication with the hollow grate bars 8, at a point dircctly above the opening 9, which provides a passageway for the smoke and products of combustion to pass from the fireboxes into Specification of Iietters Patent.

Patented Jan. 4, 1921. Serial No. 403,591.

the smoke compartment 10, formed at the rear of the furnace, and which smoke con1- partment communicates with the fines 11 that carry the smoke to the chimney proper.

The lower grate bars 12 are also in communication with the water back 7 at the base thereof, and as shown this water back 7 also communicates with a radiator 18 disposed at the rear of the furnace, through the upper pipe 14 and lower pipe 15 so that a complete circulation of water may be had between the water back 7 and radiator 13, it being-understood however that the radiator 13 feeds a plurality of radiators which may be disposed in the various rooms of the building.

The main firebox 5 is fed through the opening 16, which is closed by the door 17, the opening being formed in the forward wall 18 of the furnace proper, at a point adjacent the upper extremity thereof, while the lower firebox 6 may be fed through the opening 19 also formed in the front wall 18 of the furnace, the latter opening being controlled by the door 20, it being the purpose of the invention however to supply the lower firebox 6 with fuel dropping from the main firebox 5.

As before stated. the furnace forming the subject matter of this invent on is of the down draft type, and to this end a plurality of openings 21 are formed in the upper portion of the furnace, which openings are controlled by means of the sliding plate 22, which is also provided with openings whereby the down draft within the main firebox 5 may be regulated.

In order that the gas which might collect in the main firebox 5 may be carried off, an exhaust pipe 23 is disposed within the main firebox 5, the upper extremity of the exhaust pipe 23 terminating at a point above the opening 16, to prevent coal being fed to the main firebox 5 from entering the exhaust pipe 23, the lower extremity of the exhaust pipe 23 however terminating adjacent to the opening 9, whereby the gases will have an unobstructed passage through the smoke compartment 10.

Disposed above the main firebox 5 is a baking oven indicated by the reference character 2 1, which baking oven is provided with a door 25, to permit of easy access to the interior thereof. It might be further stated however that an opening 26 is formed in the upper wall of the oven 24, which opening may be closed by the pivoted door 27, to retain the heat in the oven, but if the oven is to be used as a broiler, it is obvious that the door 27 may be opened to permit smoke or the like to pass from the oven and into the smoke compartment 10.

As shown, the rear wall of the furnace proper is spaced from the wall of the building in which the furnace is positioned, the space being indicated by the reference character 28, which provides a compartment for the heat from the furnace to pass upwardly, and into the adjacent rooms, through the registers 29.

Supported under the lower grate bars 12 is an air intake pipe indicated at 30 which extends across the upper portion of the ashpit, the inner extremity thereof lying within the combustion chamber 31 forming the lower portion of the smoke compartment 10, the combustion chamber 31 being provided to accommodate accumulated gas which is consumed by the heat of the fires within the fireboxes.

Air is supplied to the fireboxes, through the opening 32, which is controlled by the hinged door 33, the air passing upwardly through the fireboxes in a well known manner.

While I have shown and described the furnace as designed for use on the main floor of a building, it is to be understood that the furnace may be positioned in any suitable location, as for instance in the basement or cellar of a building.

What is claimed as new is l. In a furnace construction, an upper firebox and a lower firebox, rate bars for each firebox, a water back disposed to the rear of the fireboxes, and forming the rear walls thereof, a wall spaced from the water back to provide a smoke compartment, and said water back having an opening providing communication between the fireboxes an d smoke compartment.

2. In a furnace construction, an upper firebox and alower firebox, a water back forming the rear wall of the fireboxes, a wall spaced from the water back to provide a smoke compartment, said water back having an opening to provide communication between the fireboxes and smoke compartment, and an exhaust pipe disposed within the upper firebox and having its upper extremity located adjacent to the upper wall of the upper firebox.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of a witness.

GEORGE I-I. RUSSELL.

WVitness:

IVY E. SIMPSON. 

